Defiance Drake, having dealt with the deadly Cubarb parasite catches her breath

Question

Defiance Drake, having dealt with the deadly Cubarb parasite catches her breath and then heads to the bridge to take control of the freighter. The hatch leading to the bridge has a wheel mechanism to secure it (see picture in the assignment folder). To open the hatch, she grabs hold of the wheel, with her hands on opposite sides, and rotates the wheel by exerting a force toward the top of the door on one side, while exerting the same force towards the bottom of the door on the opposite side. Is there a net force applied on the wheel? Is there a net torque applied? Explain how you know.

Explanation / Answer

here two forces of same magnitude are acting on the opposite sides of the wheel,hence net force acting is zero

coming to net torque due to these two forces,a couple is constituted

hence torque T = one of the force * perpendicular distance between the forces = F*diameter of the wheel = F*d

so there will be net torque and its direction is perpendicular to the plane containing Forces and wheel

conclusion:

Net force is zero and Net torque is not zero

Related Questions

Navigate

• Browse (All)
• Browse D
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.